Um my game randomly crashed when i was mining stone on the surface, and now i crash when i join the game. DTR was next to me using a spell to mine so idk. But when I joined I heard a minecraft though there wasn't a minecraft near me when it happened. And I didn't even see anything when it was joining, it showed the dirt screen and crashed.

java.lang.ClassCastException: crazypants.enderzoo.charge.EntityPrimedCharge cannot be cast to net.minecraft.entity.EntityLivingBase
at net.minecraft.client.network.NetHandlerPlayClient.func_147281_a(NetHandlerPlayClient.java:743)
at net.minecraft.network.play.server.S0FPacketSpawnMob.func_148833_a(SourceFile:97)
at net.minecraft.network.play.server.S0FPacketSpawnMob.func_148833_a(SourceFile:15)
at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:212)
at net.minecraft.client.multiplayer.GuiConnecting.func_73876_c(SourceFile:78)
at net.minecraft.client.Minecraft.func_71407_l(Minecraft.java:1650)
at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:962)
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:887)
at net.minecraft.client.main.Main.main(SourceFile:148)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)
at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- Head --
Stacktrace:
at net.minecraft.client.network.NetHandlerPlayClient.func_147281_a(NetHandlerPlayClient.java:743)
at net.minecraft.network.play.server.S0FPacketSpawnMob.func_148833_a(SourceFile:97)
at net.minecraft.network.play.server.S0FPacketSpawnMob.func_148833_a(SourceFile:15)
at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:212)
at net.minecraft.client.multiplayer.GuiConnecting.func_73876_c(SourceFile:78)

I'm getting the same crash too (as we were in the same location and were affected at the same time). I am 100% sure that it wasn't my blood magic spell because A)I wasn't using it right when we crashed, B)the crash-report does not mention blood magic, and C)I used that spell countless times before. By just reading my and your crash-report, I believe this is an issue due to an Ender Zoo entity known as "crazypants.enderzoo.charge.EntityPrimedCharge". I'm experiencing the same crash symptoms, but I don't have the same crash-report (correction: we have nearly the same crash-report).

Edit: You hear the minecart too?

Here is the crash-report anyways:

Spoiler

---- Minecraft Crash Report ----

// This is a token for 1 free hug. Redeem at your nearest Mojangsta: [~~HUG~~]

java.lang.ClassCastException: crazypants.enderzoo.charge.EntityPrimedCharge cannot be cast to net.minecraft.entity.EntityLivingBase
at net.minecraft.client.network.NetHandlerPlayClient.func_147281_a(NetHandlerPlayClient.java:743)
at net.minecraft.network.play.server.S0FPacketSpawnMob.func_148833_a(SourceFile:97)
at net.minecraft.network.play.server.S0FPacketSpawnMob.func_148833_a(SourceFile:15)
at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:212)
at net.minecraft.client.multiplayer.GuiConnecting.func_73876_c(SourceFile:78)
at net.minecraft.client.Minecraft.func_71407_l(Minecraft.java:1650)
at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:962)
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:887)
at net.minecraft.client.main.Main.main(SourceFile:148)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)
at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- Head --
Stacktrace:
at net.minecraft.client.network.NetHandlerPlayClient.func_147281_a(NetHandlerPlayClient.java:743)
at net.minecraft.network.play.server.S0FPacketSpawnMob.func_148833_a(SourceFile:97)
at net.minecraft.network.play.server.S0FPacketSpawnMob.func_148833_a(SourceFile:15)
at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:212)
at net.minecraft.client.multiplayer.GuiConnecting.func_73876_c(SourceFile:78)